CN218727431U - Film LCD screen drive circuit board test fixture - Google Patents
Film LCD screen drive circuit board test fixture Download PDFInfo
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- CN218727431U CN218727431U CN202222343634.XU CN202222343634U CN218727431U CN 218727431 U CN218727431 U CN 218727431U CN 202222343634 U CN202222343634 U CN 202222343634U CN 218727431 U CN218727431 U CN 218727431U
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- data line
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Abstract
The utility model discloses a film liquid crystal display driving circuit board test fixture, which comprises a detection mechanism, wherein a pressing mechanism is arranged on the detection mechanism, and a display mechanism is arranged on the pressing mechanism; the detection mechanism comprises a base, a test button, a voltmeter and a test data line push-pull mechanism are arranged on the base, a signal generation board and a data signal conversion board are arranged in the base, the signal generation board is connected with the data signal conversion board through a VGA data line, the data signal conversion board is connected with the test data line push-pull mechanism through a data line, and the display mechanism is connected with the probe through a shielding line. The utility model has simple structure, reasonable design and rapid positioning, and can more intuitively display the performance of the driving circuit board of the thin film liquid crystal display by converting the excellent performance into visual gray scale and color picture; and detect rapidly, can effectively practice thrift artifical expenditure, reduce cost in business.
Description
Technical Field
The utility model relates to a circuit board test fixture technical field especially relates to a film LCD screen drive circuit board test fixture.
Background
After the thin film liquid crystal display driving circuit board is produced in a large scale, the performance of products needs to be detected before delivery, and the factory yield is guaranteed. Usually, the test is carried out by manual clamping, which causes a large error in the test result; the clamping of the circuit board is unstable and the position difference easily causes the extrusion deformation of the main board; the manual detection efficiency is low, and the method is not suitable for large-scale assembly line operation; when the mainboard is directly inserted into the detection circuit, the protection processing is not carried out, the phenomena of short circuit and the like are easily caused, and the circuit board and the test device are damaged. Therefore, it is necessary to design a testing fixture for a thin film liquid crystal display driving circuit board, which is used for detecting the performance of the circuit board.
Disclosure of Invention
The utility model aims at solving the technical problem, a film LCD screen drive circuit board test fixture is provided.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: the utility model provides a film LCD screen drive circuit board test fixture which characterized in that: the device comprises a detection mechanism, wherein a pressing mechanism is arranged on the detection mechanism, a display mechanism is arranged on the pressing mechanism, the pressing mechanism comprises a substrate clamping tool, a base is arranged on the rear side of the substrate clamping tool, and a pressing structure is arranged on the base; the detection mechanism comprises a base, a test button, a voltmeter and a test data line push-pull mechanism are arranged on the base, a signal generation board and a data signal conversion board are arranged in the base, the signal generation board is connected with the data signal conversion board through a VGA data line, the data signal conversion board is connected with the test data line push-pull mechanism through a data line, and the display mechanism is connected with the probe through a shielding line.
Preferably, the following components: the pressing structure comprises a cylinder assembly, a pressing plate is arranged on the cylinder assembly, and a plurality of pressing points are uniformly distributed on the outer ring of the lower surface of the pressing plate.
Preferably: the substrate clamping tool comprises a support plate, wherein a plurality of probes are arranged on the support plate, and the probes are distributed in one-to-one correspondence with the substrate test points.
Preferably: the carrier plate is arranged into an inwards concave stepped structure.
Preferably: the base is of an anti-static material structure.
Preferably: the pressing structure is located right above the substrate clamping tool.
Preferably: the base outside is provided with the voltage monitoring table, and the upper left side is provided with test button and data line plug handle.
Compared with the traditional structure, the beneficial effects of the utility model are that: the structure is simple, the design is reasonable, the positioning is rapid, and the performance of the thin film liquid crystal display driving circuit board is more intuitively displayed by converting the excellent performance into visual gray scale and color picture frames; and the detection is rapid, the labor expenditure can be effectively saved, and the enterprise cost is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. the test device comprises a display mechanism, 2 parts of a pressing mechanism, 21 parts of a substrate clamping tool, 211 parts of a carrier plate, 212 parts of a probe, 22 parts of a base, 23 parts of a pressing structure, 231 parts of a cylinder assembly, 232 parts of a pressing plate, 233 parts of a pressing point, 3 parts of a detection mechanism, 31 parts of a test data line pushing and pulling mechanism, 32 parts of a data signal conversion plate, 33 parts of a signal generation plate, 34 parts of a voltmeter, 35 parts of a test button and 36 parts of a base.
Detailed Description
The present invention will be further explained below.
Referring to the attached drawings, the test fixture for the thin film liquid crystal display driving circuit board is characterized in that: the device comprises a detection mechanism 3, wherein a pressing mechanism 2 is arranged on the detection mechanism 3, a display mechanism 1 is arranged on the pressing mechanism 2, the pressing mechanism 2 comprises a substrate clamping tool 21, a base 22 is arranged on the rear side of the substrate clamping tool 21, and a pressing structure 23 is arranged on the base 22; the detection mechanism 3 comprises a base 36, a test button 35, a voltmeter 34 and a test data line push-pull mechanism 31 are arranged on the base 36, a signal generation board 33 and a data signal conversion board 32 are arranged in the base 36, the signal generation board 33 is connected with the data signal conversion board 32 through a VGA data line, and the data signal conversion board 32 is connected to the test data line push-pull mechanism 31 through the data line and pressed by a pressing block.
In this preferred embodiment, the pressing structure 23 includes a cylinder assembly 231, a pressing plate 232 is disposed on the cylinder assembly 231, and a plurality of pressing points 233 are uniformly distributed on an outer ring of a lower surface of the pressing plate 232 to press the substrate in a matching manner.
In this preferred embodiment, the substrate clamping tool 21 includes a carrier plate 211, a plurality of probes 212 are disposed on the carrier plate 211, and the probes 212 are distributed in one-to-one correspondence with the substrate test points.
In the preferred embodiment, the base 36 is configured as an antistatic material.
In this preferred embodiment, the carrier plate 211 is configured as a concave ladder structure.
In the preferred embodiment, the pressing structure 23 is located right above the substrate clamping tool 21.
In specific implementation, the circuit board is fixed through the substrate clamping tool 21, the substrate clamping tool 21 is of a concave stepped structure, the substrates are convenient to assemble and disassemble, and the substrate clamping tool is fixed through the positioning columns; then, by pressing the test button 35, the cylinder is pressed down, and the pressing point 233 arranged below the pressing plate 232 is matched with the base to perform buffering; then the probe 212 is communicated with the substrate, and the substrate is also connected with the display mechanism 1 through a circuit; after the power is turned on, if the performance of the substrate is excellent, the display mechanism 1 is started so as to see the normal working condition of the substrate through the displayed gray scale picture and the displayed color picture, and the voltmeter 34 is further arranged on the base 36 and can display the voltage on the key point, so that the voltage characteristics of the product work can be effectively mastered, and the performance of the circuit board is ensured to be qualified.
The above embodiments of the present invention are only examples for clearly illustrating the present invention, but not for limiting the scope of the present invention, and all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by each claim.
Claims (6)
1. The utility model provides a film LCD screen drive circuit board test fixture which characterized in that: the device comprises a detection mechanism (3), wherein a pressing mechanism (2) is arranged on the detection mechanism (3), a display mechanism (1) is arranged on the pressing mechanism (2), the pressing mechanism (2) comprises a substrate clamping tool (21), a base (22) is arranged on the rear side of the substrate clamping tool (21), and a pressing structure (23) is arranged on the base (22); the detection mechanism (3) comprises a base (36), a test button (35), a voltmeter (34) and a test data line push-pull mechanism (31) are arranged on the base (36), a signal generation board (33) and a data signal conversion board (32) are arranged in the base (36), the signal generation board (33) is connected with the data signal conversion board (32) through a VGA data line, and the data signal conversion board (32) is connected with the test data line push-pull mechanism (31) through a data line.
2. The thin film liquid crystal display driving circuit board test fixture of claim 1, wherein: the downward pressing structure (23) comprises an air cylinder assembly (231), a pressing plate (232) is arranged on the air cylinder assembly (231), and a plurality of pressing points (233) are uniformly distributed on the outer ring of the lower surface of the pressing plate (232).
3. The thin film liquid crystal display driving circuit board test fixture of claim 1, wherein: the substrate clamping tool (21) comprises a carrier plate (211), wherein a plurality of probes (212) are arranged on the carrier plate (211), and the probes (212) are distributed in one-to-one correspondence with substrate test points.
4. The thin film liquid crystal display driving circuit board test fixture of claim 3, wherein: the carrier plate (211) is arranged to be of an inwards concave stepped structure.
5. The thin film liquid crystal display driving circuit board test fixture of claim 1, wherein: the base (36) is configured as an antistatic material structure.
6. The thin film liquid crystal display driving circuit board test fixture of claim 1, wherein: the pressing structure (23) is located right above the substrate clamping tool (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222343634.XU CN218727431U (en) | 2022-09-05 | 2022-09-05 | Film LCD screen drive circuit board test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222343634.XU CN218727431U (en) | 2022-09-05 | 2022-09-05 | Film LCD screen drive circuit board test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218727431U true CN218727431U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222343634.XU Active CN218727431U (en) | 2022-09-05 | 2022-09-05 | Film LCD screen drive circuit board test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218727431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116908658A (en) * | 2023-08-01 | 2023-10-20 | 中国人民解放军国防科技大学 | Small-size small-signal circuit board testing device |
-
2022
- 2022-09-05 CN CN202222343634.XU patent/CN218727431U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116908658A (en) * | 2023-08-01 | 2023-10-20 | 中国人民解放军国防科技大学 | Small-size small-signal circuit board testing device |
| CN116908658B (en) * | 2023-08-01 | 2024-01-05 | 中国人民解放军国防科技大学 | Small-size small-signal circuit board testing device |
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